Instead of something that was added *to* the movie, I noticed something that wasn't in the movie. I don't know if it was intentional or not, but Esme's name is never spoken in the Eclipse movie. I thought I noticed it the first time around, but I wasn't sure. I went to see it again last night and made sure I paid attention from beginning to end, and I was right. No one ever says Esme's name.
(I wanted to post a thread about this, but am unable to - this must be one of the places where only mods can start threads - but I wanted to mention it somewhere - this seemed like the best thread in which to mention it)